rinsuki · December 29, 2015 09:52
diff --git a/index.html b/index.html
 <!DOCTYPE html>
 <html>
  <head>
    <meta charset="UTF-8">
    <script src="./script.js"></script>
  </head>
  <body>
    <button id="btn">Click</button>
  </body>
 </html>
diff --git a/script.js b/script.js
 window.addEventListener("load",function(){
  var btn = document.getElementById("btn");
  btn.addEventListener("click",function(){
    alert("押された");
  })
 });
	window.addEventListener("load",function(){
	var btn = document.getElementById("btn");
	btn.addEventListener("click",function(){
	alert("押された");
	})
	});